/Engine/Source/Runtime/Slate/Public/Widgets/Layout/SScrollBox.h
Returns widget that can receive keyboard focus or nullprt
[TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [SWidget](API\Runtime\SlateCore\Widgets\SWidget) > GetKeyboardFocusableWidget ( [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [SWidget](API\Runtime\SlateCore\Widgets\SWidget) > InWidget )